The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 23, 1996
Filed:
Jul. 15, 1994
Applicant:
Inventors:
Motomasa Imai, Chofu, JP;
Naoki Shutoh, Yokohama, JP;
Katsuyoshi Oh-Ishi, Kawasaki, JP;
Fumio Ueno, Yokohama, JP;
Hideo Ohkuma, Kawasaki, JP;
Yuji Katsumura, Kamakura, JP;
Masaki Kobayashi, Kawasaki, JP;
Toshiyuki Takahashi, Yokohama, JP;
Assignees:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Toshiba Tungaloy Co., Ltd., Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; H01C / ; H01C / ;
U.S. Cl.
CPC ...
218143 ; 338 20 ; 338 21 ; 338225 ; 252502 ; 252503 ; 252506 ;
Abstract
A metal oxide resistor for suppressing variations in resistivity in use in an atmosphere at a high temperature or humidity. Such a metal oxide resistor includes a sintered body in which carbon particles having an average grain size of 1 .mu.m or less exist in the grain boundaries of metal oxide particles in an amount of 0.05 to 3 wt %, and electrodes formed on at least two opposing surfaces of the sintered body.